Assign a sample size:
While inside techpack settings, and after you include your size range, you can assign your sample size.
Click here to learn how to edit techpack settings or what details are needed to start a techpack.
Re-select sample size:
While inside a techpack and in List View, you can re-select sample size by clicking on the space next to "Sample:" and a drop-down menu will appear for you to click on your desired size. The sample size will be highlighted in Pink.
If you need to add a size (or column), start typing in the space next to "New Column:" and click "+ COLUMN" after each size added.
To learn more about how to use grading, click here.